a block with a mass of 12.2 kg is sitting on an elevator, which is initially...
a block with a mass of 12.2 kg is sitting on an elevator, which is initially moving downward wiht a constant velocity of 2m/s, What is the normal force on the block?
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a block with a mass of 12.2 kg is sitting on an elevator, which
is initially...
A 2 kg block is sitting on a 4 kg block in an elevator. The elevator...
A 2 kg block is sitting on a 4 kg block in an elevator. The elevator is accelerating downward at 2 m/s^2. A) What is the force of the floor on the bottom box? B) What is the force of the top box on the bottom box?
A) 70 kg man s standing in an elevator. Find the reaction of the elevator...
A) 70 kg man s standing in an elevator. Find the reaction of the elevator on the man if a) the elevator is accelerating upward at 1.5 m/s^2 b) the elevator is accelerating downward at 1.5m/s^2 c) the elevator is descending at a constant velocity 3m/s. B) If the elevator and its contents has a total mass of 1500kg, and it is sup four cables each having a tension T. ? find the tension T IN EACH OF THE...
A single mass (m1 = 4.4 kg) hangs from a spring in a motionless elevator.
A single mass (m1 = 4.4 kg) hangs from a spring in a motionless elevator. The spring constant is k = 270 N/m. 1) What is the distance the spring is stretched from its unstretched length? 2) Now, three masses (m1 = 4.4 kg, m2 = 13.2 kg and m3 = 8.8) hang from three identical springs in a motionless elevator. The springs all have the same spring constant given above. What is the magnitude of the force the bottom spring exerts on the...
(a) An elevator of mass m moving upward has two forces acting on it: the upward...
(a) An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the cable and the downward force due to gravity. When the elevator is accelerating upward, which is greater, T or w? Tw Both forces are equal. (b) When the elevator is moving at a constant velocity upward, which is greater, T or w? Tw Both forces are equal. (c) When the elevator is moving upward, but the acceleration is downward, which is...
(a) An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the cable and the d...
(a) An elevator of mass m moving upward has two forces acting on it: the upward force of tension in the cable and the downward force due to gravity. When the elevator is accelerating upward, which is greater, T or w? T w Both forces are equal. (b) When the elevator is moving at a constant velocity upward, which is greater, T or w? T w Both forces are equal. (c) When the elevator is moving upward, but the acceleration...
A block of mass m1 = 1.0 kg initially moving to the right with a speed...
A block of mass m1 = 1.0 kg initially moving to the right with a speed of 3.2 m/s on a frictionless, horizontal track collides with a spring attached to a second block of mass m2 = 3.4 kg initially moving to the left with a speed of 2.6 m/s as shown in figure (a). The spring constant is 530N/m. (A) Find the velocities of the two blocks after the collision. (B) During the collision, at the instant block 1...
A single mass m1 = 3.5 kg hangs from a spring in a motionless elevator. The...
A single mass m1 = 3.5 kg hangs from a spring in a motionless elevator. The spring is extended x = 15 cm from its unstretched length. 1) What is the spring constant of the spring? Now, three masses m1 = 3.5 kg, m2 = 10.5 kg and m3 = 7 kg hang from three identical springs in a motionless elevator. The springs all have the same spring constant that you just calculated above. What is the force the top...
2. A block of mass of 12.0 kg is sitting on a frictionless surface. If the...
2. A block of mass of 12.0 kg is sitting on a frictionless surface. If the block is initially at rest, and a force of 5.0 N parallel to the surface is applied for 13.0 seconds, what is the final speed of the block?
3 A block of mass 15 kg is initially moving with velocity 20 m/s. If a...
3 A block of mass 15 kg is initially moving with velocity 20 m/s. If a net 800 J of work is done by the force, calculate the final velocity attained by the block. [Work- Energy theorem)
_ elevator platform scale 30. Using the above picture, a 90 kg person stands on a...
_ elevator platform scale 30. Using the above picture, a 90 kg person stands on a scale in an elevator a) Calculate weight of the person on the scale if the elevator is stationary. b) Calculate the weight of the person on the scale if the elevator is moving at constant velocity upward. c) Calculate the apparent weight of the person on the scale if the elevator is accelerating upward at 2m/s d) Calculate the apparent weight of the person...
A) 70 kg man s standing in an elevator. Find the reaction of the elevator on the man if a) the elevator is accelerating upward at 1.5 m/s^2 b) the elevator is accelerating downward at 1.5m/s^2 c) the elevator is descending at a constant velocity 3m/s. B) If the elevator and its contents has a total mass of 1500kg, and it is sup four cables each having a tension T. ? find the tension T IN EACH OF THE...
3 A block of mass 15 kg is initially moving with velocity 20 m/s. If a net 800 J of work is done by the force, calculate the final velocity attained by the block. [Work- Energy theorem)
_ elevator platform scale 30. Using the above picture, a 90 kg person stands on a scale in an elevator a) Calculate weight of the person on the scale if the elevator is stationary. b) Calculate the weight of the person on the scale if the elevator is moving at constant velocity upward. c) Calculate the apparent weight of the person on the scale if the elevator is accelerating upward at 2m/s d) Calculate the apparent weight of the person...
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